The medical reform in that 
country turns out to be ______ failure, but as we know, success often comes after ______ failure.
| A．a; the | B．a; 不填 | C．a; a | D．不填; 不填 |
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The medical reform in that country turns out to be ______ failure, but as we know, success often comes after ______ failure.
| A．a; the | B．a; 不填 | C．a; a | D．不填; 不填 |
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